Edmund c



E. C. MORGAN.

MINING AND LOADING MACHINE. APPLICATION FILED JULY 15.1915. RENEWED OCT.30,1920.

Patented Aug. 29,

n SHEETS-SHEET "1.

| IIFAI E. C. MORGAN.

NHN'NG AND LOADING MACHINE- APPLICATION FILED lULY 15,1915. RENEWED OCT.30,1920.

m Q W m %n .1 a Am We m id m R E. c. MORGAN. MINING AND LOADING MACHINE.

A PPLIIIATION FILED JULY 15,1915. RENEWED OCT. 30, I920.

Patented Aug. 29, 1922.

I I SHEETS-SHEET 3.

i n g E.-C. MORGAN.

MINING AND LOADING MACHINE.

APPLICATION FILEDJULY I5, I9I5. RENEWED OCT. 30. I920.

1 ,427, 1 1 9. t t d Aug. 29, 1922,.

l I SHEETS-SHEET 4.

E. C. MORGAN.

MINING AND LOADING MACHINE.

APPLKCATION men JULY 15.1915. RENEWED OCT. 20. I920. IAQZIIQ,

Patented Aug. 29, 1922.

ll SHEETSSHEET 5- E. C. MORGAN.

MINING AND LOADING MACHINE.

APPLICATION FILED JULY I5 I915. RENEWED OCT. 30, I920.

1 42?, 1 1 9 Patented Aug. 29, 1922.

1? SHEETS-SHEET 6.

Ja ZZZ? mild/2d aflgrqmb a t v 5,0. MORGAN. MINING AND LOADING MACHINE.APPLI CATION FILED JULY 15,1915- RENEWED OCT. 30,1920.

Patented Aug. 29, 1922.

II SHEETS-SHED I.

E. C. MORGAN. Mmme AND LOADING MACHINE. APPLICATION FI LED JULY 15,1915.RENEWED OCT- 30,1920.

H SHEETS-SHEET 8.

Patented Aug. 29., 1922.

7/ ZZ/6)ZZ5// I fdmzazmyflz E. C. MURGAN.

MINING AND LOADING MACHINE.

APPLICATION FILED JULY15,1915. RENEWED 001.30.1920.

Patented Aug. 29, 1922.

H SHEETSSHEET 9.

w HE MINI." w g u n m w W m in I V V A l xxx \NN KN a.

E. C. MORGAN.

MINING AND LOADING MACHINE.

APPLICATION FILED JULY 15.1915. RENEWED OCT. 30.1920.

Patented Aug. 29, 1922.

I I SHEETS-SHEET I0- III E C. MORGAN.

MINING AND LOADING MACHINE.

APPLICATION FILED JULY 15.1915. RENEWED o'cT. 30.1920.

1 ,427, 11 9 Patented Aug. 29, 1922.

H SHEETS-SHEEI I I.

E N W y fi I 4 5 7052%? ELM EDMUND O. MORGAN; OF NEW YORK, N. Y.

lVIINIIilG AND LOADING MZACHIN Specification-of Letters latent. Pg -tH-Q Q fl g. 29

Application filed. July 15, 1915, Serial N0. 39,986. Renewed October 30,Serial 1\To. 420,821.

ing apparatus whereby inaterial is com pletely severed from a mine walland then moved back from the mine wall into position for loading. One ofthe-objects of my invention is to provide improvements on the mining andloading machine disclosed in my 'copending application Ser. No. 864-,211, filed Sept. 30, 1914 for an improvement in mining and loadingmachines, and also has certain features in common with the subjectmatterdisclosed in my copending application Ser. No. 8%,727, filed July 3,1914:, for

an improvement in mining machines.

Other objects of the invention'will appear hereinafter the novelcombinations and features being set forth in the appended claims.

Referring to the accompanying drawinge- Fig. 1 is a view in sideelevation of a mining machine embodying certain of my and 2 theconveyormechanism being shown in vertical section; I

Fig, 6 is front sectional elevation taken on the line 6-6 of Fig. 1 withcertain parts omitted and a guide pulley shown inelevation instead of insection;

7 is a plan view of the extension of the conveyor mechanism from thereaiportion .of the. construction shown in l. and E2;

Fig. 8 is aside elevational view of Fig. 7,

being broken away at the right to indicate the continuation of thebroken away portion. at the left of Figs. 1 and 2;

Fig. 9 is a sectional. elevational view or Y t t he constructionshownfin Fig. 8 taken on he line 9 9 of Fig. .7 F1g. 10 is across-sectional elevation of Fig. 7 on the line 101O thereof look-mg inthe direction ofthe arrows, with the rope and its attachment to theconveyer belt nisin for connecting the loop cutter with the conveyingbelt;

Fig. 12 is an enlarged sectional elevation of spring pressed'devicesassociated with the conveyor belt shown in Fig. for engaging'the minedmaterial when being moved to loading position;

.ig. 13 is a plan view partly in section of the loop chain cuttermechanism;

Fig. 1a is a side elevation of a portion of the loop chain cutter toshow the alternate positions of individual successive cutters;

Fig. 15 is a cross sectional View of the chaincutter and aportion. ofthe mechanism for holding and guidinothe same;

of the upper right hand portion of the construction shown in Fig. 4

Fig. 1'? is an enlarged front elevation of the upper right hand portionof Fig. at to more clearly show the mechanism for trans- I mitting powerto the loop chaiiicutter;

F 18 a plan view of Fig. 17 to show the spur and bevel gearing indicatedby the dotted circles in Fig. 17;

l ig. 19 is .a sectional view of Fig. 1'7 on the line 19-19 and lookingin the direction of the arrows; and p lfig. 20 is a sectional elevationof Fig 18 on'the line 20--20 and looking in the direction oftl ieairows.-

The operating parts of the mining and loading machine shown in thedrawing are mountedupon a frame. 21 which may be ofopen-workconstruction and rectangular in.

form; as illustrated in Figs. 1 and 3. This main frame of the machine ispreferably made of structural steel to facilitate its construction andreduce its weight to a miniminn without detracting from its strength.The lOiver side longitudinal members 22, 22 are rigidly connectedtogether by the crosspieces 23, and 25, as shown in Figs. 2 and 3.Extendingupwardly from each corner of the rectangular base frame thusconstructed, are uprights 26,26 and 27 27,

'. 16 is a sideelevational view of a part 1* 1g. 11 is an enlarged planview of niecha- I as shown in Figs. 1 and 3. The upper ends of thesecorner uprights are connected by crosspieces 28 and 29 and by thelongitudinal members 30, 30, as shown in Figs. 1 and 3. As shown in thedrawings, the various longitudinal and cross members of the frame 21 arepreferably constructed of angle-beams or structural steel l.-shaped incross section. This main frame forms avery solid and substantialstructure which may be braced and strengthened as desired, as by meansof cross members of the loading apparatus hereinafter described, and bymeans of the crosspiece 31 (Figs. 1 and 3), which also supports abILLCrCQiJ 32 for the guide pulley 33. It will be evident that thestructural frame-work comprising strengthening members L-shaped in crosssection, afiords a ready means for efiiciently supporting the variousoperating parts directly as well as in its entirety.

Pivoted to the upper ends of the forward uprights 27, 27 of the mainframe, at 3 1, 3% respectively (Figs. 1 and 3) is a supplemental frame35 extending entirely across the machine, as shown in Fig. 2. Thissupplemental frame 35 is provided with two forwardly extending arms one,36, near the central portion of the supplemental frame, and the other,37, near one end thereof. The forwardly extending arms 36 and 37 areprovided with journal bearings 38 and 39 for the transverse shaft 40,which is also provided with the journal bearings 41 and 42 forsupporting the chain cutter frame 13.

It should be noted that while the transverse shaft eO extends into thejournal bearing 42, it serves merely as a support for the cutter frame13, so far as that portion thereof adjacent the journal bearing 12 isconcerned. The journal bearing 12 is rigidly connected to the verticalplate a l which is rigidly connected, as indicated at 45, to the uppersurface of the chain cutter frame 13. Rigidly connected to the verticalplate 14, is an additional vertical plate 16 grooved on its upperperipheral portion for receiving the rope 56, its lower edges having thecontour indicated at d8 in Fig. 1. The segmental plate 16 is'connectedrigidly to the vertical plate 44L by the intermediate support 49, so asto space the segmental plate from the plate 14; and provide anintermediate space for the pulley which is pivotally mounted on thevertical plate tt, as by means of the bolt 51, which may be held inadjusted position by the nut 52. Another pulley 53 is mounted on a boltpivot 5 1- which is held in adjusted position by the nut 55. The pulleys50 and 53 are preferably mounted in the same plane and the upper groovein the segmental plate 46 so arranged as to be in direct alinement withthe peripherial groove of the pulley 53 adj acent the same. Both thepulleys 50 and 53,

as well as the upper portion of the segmental plate 16, are grooved toreceive the feeding rope 56 which extends downwardly from the segmentalplate 16 into the groove of the pulley 57 which is pivoted at 58 to anextension 59 of the main frame.

The mechanism for transmitting power to the feed rope 56 comprises agrooved drum G0 on which it is wound, as shown in Fig. 2. This windingdrum 60 is secured to a shaft (31 supported on an extension of the mainframe, as shown in Figs. 1, 2 and To the shaft 61 of the winding drum60, is secured a large gear wheel 63 which meshes with a pinion 6 1. Tothe shaft 65 to which the pinion 64: is secured, is secured a large gearwheel 66 which meshes with a pinion 67, as shown in Fig. 2. The gear 66may be held by the collar 68 and set screw 69 in proper position.

.Vhile the shafts 61 and 65 may be rotatable, I prefer to secure themrigidly in position by means of the nuts 71 between the plates G2 and62'. In such event the winding drum. (30 is rigidly secured to the largegear 63 and both are mounted loosely on the shaft 61. In the samemanner, the pinion (3% is rigidly connected to the large gear 66 andboth mounted to rotate loosely on the shaft 65. The pinion 67 isconnected rigidly to the sprocket wheel 72 by means of the sleeve 73mounted loosely on the reduced portion 65 of the shaft 61. An endlesssprocket chain 74 is connected between the large sprocket wheel 72 and adriving sprocket 75 mounted loosely on the transverse shaft 76, which isjournalled in bearings 7'4 and 78, as shown in 5. The bearings 77 and78, as shown in Fig. 5, are respectively carried by the brackets 79 and80 rigidly secured to the lower longitudinal members 22 and 22 of themain frame.

The mechanism for transmitting power to the transverse shaft 76comprises sprocket gearing 81 connected between the shaft 76 and theshaft 82. I prefer to rigidly connect the shaft 82 to the bracket 83 ontop of the electric motor frame 84. The sprocket gearing 31, shown inFig. 3, comprises an endless sprocket chain 81 meshing with a largesprocket wheel 85, keyed to the shaft 76 and also meshing with a smallsprocket wheel 86. mounted loosely on the shaft 82 but rigidly connectedby the sleeve 87 (F 2) to the large gear wheel 88 which meshes with thepinion 89 on the motor shaft 90 of the electric motor 84:.

The electric motor 84 is supported by the cross angle-beams 23 and 2-1,as shown in Fig. 3, and may be held securely in place on the main frameby means of the bolts 91, 91 and nuts 92, 92 engaging the retainingstrip 93 at the forward portion of the motor,

'as shown in Figs. 2 and 5. Extending from the rear end of the frame ofthe electric motor, is a small bracket 94 provided with an opening 95(Fig. 2) to receive the bolt' 96, the lower end of which is connected at97 to the cross-beam 23, as shown in Fig. 3,Whereas its upperend is'providedwith a nut98.

The controller 99 for the electric motor -84 may be mounted on the uppersurface ot the motor frame and provided with a suitable manual operatinglever 100 for actuating the usual and well-known rev( "ngswitch andrheostat mechanism for stating, stopping and reversing the electricmotor wheneverdesired. f

Whenever the electric motor operated, motion is transmitted to thetransverse shaft 76 through the gears 88 and 89 and the sprocket gearing81. The sprockctwheel 75 being mounted loosely on the shaft 76,110motion will be transmitted to the-gearingconnected to the winding drumuntilthe clutch 101 is operated by means ot the lever 102, which ispivotedat 103 to bracket attached to the vertical portion of the crossangle-beam 24, as shown in Fig. 2. When the electric motor 8 1 isoperated in the proper direction, and the clutch 101 is thrown inbymeans of the lever 102, motion will betransmitted through the sprocket 7through gears 07, 66. 64 and 63 to the winding drum 60. It should benoted that this gearing is reduction gearing. so as to secure a slowrotation of the winding drum 60 and thus obtain a feeding motionot therope 56 hecause it is this rope which, upon being pulled slowly,teedsthe chain cutter .trame 4-3 from its initial cutting'position a shortdistance back of that' shown in Fig. 1.. up wardly approximately throughasennircle. As shown-in Fig; 1, the teed rope ex- I tends forwardly fromthe under surtace ot the windingdrum 60 to the pulley'TiT over which itis directed upwardly into the groove 1041 4t) of? the segn'rental franc4%, which is rigidly attached to the chain cutter frame The rope 56 thenextends around the groove 105 (Fig. 4-.) of the pulley (Fig. 1) andthence upwardly intothe peripheral. groove of the pulley 50 iiORrWhlfJlithe rope 56 extends downwardly into a e'roove 106 (Fig. in the rearwardeXtension 107, supported near the'outer end of; the chain cutter :tranie4153. The rope 50 tends t ansyersely from the extension 10? with repectto the main fl'EUILG, and is guides around the curved strip 108 to'theattachment 109. Where the rope is doubled on'its ltt and firmlyconnected to the conveyor belt, 110, as shown in Fig. 11. Not only isthat portion 0t the rope/56 that s doubled on itselt securely riveted bythe attachment 109 l to the belt 110, but it is also riveted. to therectangular plates 111, which act as stopsior limiting the inovement eatthe belt 110 to\ d the triangular plates 112 and .113. as shown in Figs.3 and 11. The plates 112 and 113 cutter frame 43 (Figs. 3 and 11). Itshould be noted that the curved strips 108 and-109,

particularly thatdesignated 108, are of such thickness to space theplates 112 and 113 apart sufficiently to allow the rope 56 to slipfreely between said plates. Therefore, what ever position the belt 110may occupy at the time that thewinding drum 60 is rotated in clock-wisedirection, asviewed in Fig. 1, the belt 110 will be moved until itoccupies the position shown in 11, where the abut .ment 1.11. willstrike ag,

vinst the pl: es 112, 118 and prevent further movement of the beltrelatively to such plates. Further motion of the rope 56 around theextension 107 and around the pulleys 50 and 53 over the grooveoif thesegmental plate 41-6, will thereby be prevented, and when the windingdrum a 60 is eontinued in its rotation in the mill 11101 stated, thechain cutter trains will benioved' on is pivotal supports 41 and 42 inan anti clockwise direction, as viewed in Fig. 1, toward the mine wall.I

In order to adjust the position oi the chain cutter frame, I provide anadjustable supportfor the supplemental frame Thissupplemental frame 35being pivoted at 34, 3 1 ,as shown in Figs. 1 and 3 is movable up ordown, andfwhen such motion is effected the chain cutter frame is carriedwith it. Pivoted at 120. to the upright 2-7, as shown in Fig. 1, is aU-shaped support 121 through tl'ie'arnr122 of which extends ascrew-threaded rod 12?; which ispivoted: at its upper end other side ofthe supplemental frame, 1 preter to pivot at a diagonal bracing bar 126which is slotted at 127 at its lower end portion to receive the belt 128extendinglaterally 'lt'rom thenprip ht 2?", so that by means or the nut.129 the bracing bar 126 may be secured firmly in adiusted position.

hen it is desired to adjust the elevation of the chain cutter frame 13,the nut 129 is loosened to tree the bracing bar 126 at one side of themachine' The nut 130 at the other side of the machine is loosenedWhether the chain cutter frame is to be lifted or lowered. By meansotthe nut 131, either by turning the same back or tightening up on thesame, the chain cutter frame may be* moved as desired. It the nut 131.after the nut 130has been turned back, is itself moved in the oppositedirection, the weight of the parts suspended from the supplementalframe35 will immediately lower the same so that the nut 131 alwaysremains in contact With the arm 122. -By tightening up on the nut 131,the supplemental frame 35 is lifted and with it the chain cutter frame43, until the desired position is reached. The nut is then again broughtagainst the arm 122 to act as a lock nut, so far as holdagainst thebrace bar 126 on the other side of the machine, to firmly brace thesupplemental frame in both directions during operation of the chaincutter, and restoring the same to initial position. While I prefer thebrace bar 126 at one side of the machine, it should be understood thatthe adjusting mechanism shown in Fig. 1, connected between the pivotalpoints 120 and 124, may be duplicated on the other side of the machine;

The loop chain cutter 132 is mounted on the chain cutter frame 43 asshown in Fi z 4 and is guided at the outer and lateral.

edges of the frame 43 and around the outer corners thereof in the mannershown in Figs. 3 and 15, wherein the U-shaped frame 133 is provided withgrooves 134 for receiving the links 135, the outer links 136 beinggreater in width and bearing against the forward edges of the plates 133and 137. These plates 133 and 137 engage the chain cutter frame 43, asindicated in Fig. 3 and may be secured in position in any desiredmanner. It should also be observed that the cutters 138 and 139 may beof different sizes and ex tend in various directions toward the centerof the chain and laterally therefrom. Preferably the cutters areprovided with angular extension plates 140 engaged by plates 141 andheld in position by the nuts 142 threaded on the bolts 143 which extendthrough the links 136, 144 and 134 and are provided with heads 145 attheir opposite ends and cross slots 146 for receiving a screwdriver. Iprefer to provide the laterally extending cutters 139 so as to produce akerf of sufiicient width to permit the cutter frame 43 to freely passinto the kerf as .it is produced; (See Fig. 3.) As shown in Fig. 4, acurved guide 147 is provided for the'upperleft hand corner of the chaincutter. This curved guide 147 serves to lift the slack portion of thechain upwardly from the trough 148 and direct it into the guidewaysshown in Figs. 3 and 15.

As shown at the upper right hand por tion of Fig. 4, a sprocket wheel149 meshes with the sprocket chain 132 and is pivoted at 150 for drivingrotation in an anti-clockwise direction. As shown in Fig. 19, thesprocket wheel 149 is secured to a gear 151 which meshes with anintermediate gear 152, as shown in Fig. 20. The bearing shaft 150 ismounted between a portion of the frame 43 and a bracket 153 which isbolted at 154 to the arc-shaped trough148. The shaft 150 is in reality abolt provided with a head 155 fitting against the frame 43 and having ascrew threaded portion 156 at its other end for receiving the clampingnut 157.

As shown in Fii g. 20, the intermediate gear 152 meshes with the gear158 which is rigidly connected to the bevel gear 159, the latter meshingwith the bevel gear 160, as shown in Fig. 18.

The bevel gear 160 is'keyed tothe shaft 161 which is mounted in abearing 162 bolted at 163, 163 to the auxiliary frame 43 which issecurely fastened at 164 and 165 to the circular trough 148. The shaft161, as shown in Figs. 4 and 17, extends laterally to receive the largesprocket wheel 166 WfilCll is connected by a sprocket chain 167 directlyto a sprocket wheel 168 on the shaft 90 of the electric motor 84. It istherefore evident that when the electric motor is operated, power willbe transmitted throughthe sprocket chain 167 and the gears 16.), 159,158, 152 and 151 to the sprocket wheel 149, which in turn actuates theloop chain cutter 132. It should be observed that although the shafts161 and 40 are in alignment with each other, e as viewed in Figs. 2 and4, said shafts are independently mounted. The shaft 40 is preferablyheld rigidly in position with respect to the arms 36 and 37 by theclamping members 33 and 39, so that the ends of the shaft 40 will serveas bearing supports for the bearings 41 and 42 from which the cutterframe-is suspended. The shaft 161 is mounted in the long bearing 162, asshown in Figs. 18 and 19, independently of the shaft 40,'so that theloop chain cutter 132 may be operated at any time, irrespective of theposition of the chain cutter frame or whether it is moving or not.

As shown in Figs. 4 and 18, the auxiliary frame 43 is rigidly connectedto the bearing support 41'so that the sprocket wheel 149, being mountedin the auxiliary frame 43, always retains the same relative distancefrom the supplemental frame That portion of the chain cutter frame:which guides the chain cutter during the cutting operation, isadjustable with respect to the supporting bearings 41 and 42. This adjustment is secured by providing the chain cutter frame 43 with iiatplate extensions 169, 169 as shown in Figs. 3, 4, 16 and 17. At theright hand portion of the machine, as shown in Fig. 4, the extensionplate 169' fits into a rectangular recess in the frame 43 and is held inadjusted position by bolting the plate 170 against the same, as shown inFigs. 16, 17 and 18. In order to strengthen the guides for the plates169, 169 additional hit At the upper left hand portion of Fig. 4-

the vertical extension plate 169 niay be secured in adjusted positionbythe bolts 17 2, 172; if desired, however,the bolts 51 and 54, asshown. in Figs. land 2, may be used to secure the vertical plates 171and 169 firmly in adjusted position, but in such event the pulleys 50and 53 will become fixed and will necessitate the rope 56 slippingaround the same as it does around the-segmental plate 46.

The mechanism for adjusting the radial length of the chain cutter framefrom its pivotal axis, is primarily forthe purpose of adjusting theradius of the'kerf to be cut in the mine wall, although such adjustingmechanism may also be used to some extent for taking up the slack inathechain cutter 132. l l hen the radial length of the chain cutter. frameis to be varied to some extent, one or more links may be taken out orinserted in the chain, as occasion may require. lVhen the chain cutterframe, is to be lengthened, the same may. first be moved forward fromits ,initial position a short distance and then the fastening mechanismfor the plates 169, 169" loosened to permit the latter to slide to alower-position, or until-the frame meets the floor of the mine. It maybe preferred, however, both for lengthening and shortening the cutterframe, to provide, a' plurality of manually operated screwjaclissuitably located beneath the lower horizontal portion of the cutterframe. Assuming the chain cutter frame to be entirely clear of the minefloor when in. initial position. and when moved into the mine, it isevident that by looseuinn the adjusting; mechanism for the plates 169,169, the nuts 130 and 181 maybe so operated as to lift or lower thesupplemental frame .on its pivots 3a and 341 so as to move theshaft 10approximately midway between the roof-and floor of the mine cham her. Inthis way, the floor of the anine will take the weight of the chaincutter frame 43, while the pivot shaft 410 and the parts carried therebymay be moved up or down while the fastening mechanism for theplatesllll), 1G9 is in released position. lt is also obvious that inthis 'manner the radial length of the chain cutter frame may be readilyvaried, links of the .chainlcutter beinginserted or removed as may benecessary.

After the shaft lO has been located approximately midway between thefloor. and the roof of the mine, the-fastening mechanism for the plates169, 169 may again be operated to securely clamp the parts 169 and 171,and 169', 170 and'171 in fixed relative posiframe 21 as wellseolilallianly in position. llllt ruling jack 173 is shown in Figs. 1and 2 pivoted at 174 to the upper surface of the supplemental frame 35,but by reason of the firmly secured brace 121, 123, it acts on the mainas i on the supplemental frame35.

i As shown in Figs. 5 and 6, the lower longitudinal angle beams 22 and22 may be provided with sliding shoes 175, 1.7 5 to facilitate movementof the mining machine over the mine floor as well as to protect theframe of the mining machine. 1

The loading apparatus comprises an in clined chute 176 which extendsentirely across the main frameof the mining machine, as shown in Figs.1, 2,8 and 6. (The inclined chute 178 is preferably composed 'of sideangle strips 177 and 177 and inter- .mediate longitudinal strips 17 8,spaced apart from each other andfromfithe angle strips 177 and 177, asshown in Figs. 2 and 6. The lateral angle plates 177 and 177 and theintermediate strips 178 are held together by a series of transversestrips 17 9 which are.

riveted thereto. The rear end of the chute 176 rests ontlie uppertransverse anglei beam '28, as shown in Fig. 3, while the forwardportion restson the screw-threaded.rod 180, as shown in Fig. 1.Preferably, this screw threaded, rod 180 is solocated as to engage oneof the transverse angle strips 179. -The rod 180 passes through an opening in the bracket 181 which. is. securely fastened to the upright 27 ofthe main frame. By means of the nuts 182 and 183,

the position of the screw threaded rod 180 may be adjusted andconsequently the lower portion of thechutc 176 may be lifted or loweredas desired. As shown in Fig. 2, the ad usting devices, comprising thescrewtln'eaded rods 180 and 180" are located on 187 are held in adjustedposition by the nuts 188, 189 and 188, 189 which are threaded onopposite sides of the beams on the screw-threaded rods .190, 190respectively pivoted at 191 and 191 to brackets 192 and'192 securelyfastened tothe uprights-27 and 27" as shown in Figs. 1 and 3.Obviouslyby operating the nuts 188, 189'and'188,189, the walking beams187 and-187v maybe varied in position as desired, that is to say, liftedor lowered on the pivotal supports 186 and 186.

shown' in Figs. 8 and 9, the walking tudinal angle strips 196 and 196.

21.6 and 215, 216.

beams 187 and 187 extend toward the rear from their pivotal supports 186and 186 a distance approximately equal. to the forward extensions shownin F igs. 1 and 3. The rearward extensions serve as supports for thetransverse Z-beanis 193 19 2,10 which is riveted the chute 195, as shownin Fig. 7. This chute 195 is a rear continuation of the chute 176 and issimilarly constructed, being provided with longitudinal lateral anglestrips 196, 196 and intermediate strips 197 spaced apart from each otherand from the angle strips 196 and 196 and held together by thetransverse strips198 and 199.

The cross strip 199 is the one at the rear end of the chute 195, asshown'in 7, and is provided with rearwardly extending brackets 200, 200which serve as bearings for the shaft 201, which also extends throughthe bearings in the brackets 202 and 202 extending rearwardly from thelongi- The shaft 201 carries three drums, 203, 20 1,, and 205 whichserve as direction pulleys for the flexible belt 110 when the latter ispulled around the same. The middle drum, 204C, acts also as a directionpulley for the driving rope 206 which is securely fastenedat 207 to therear end of the flexible belt 110., as shown in Figs. 7 and 9. v 7

As shown in Figs. 7 and 8 the lateral rear portions of the chute 195 areprovided with adjustable jacks for engaging the lateral faces of themine wall, as shown by the dotted line position of one of the jacks inFig. 10. These chute jacks are preferably constructed to have loops orti -shaped rods 208, 208, the ends of which are slidable in sockets 209,210 and 209, 210' and held in adjusted position by means of the setscrews 211, 212 and 211, 212C The sockets 209, 210 and 209, 210 areprovided with right angle extensions 213, 214 and 213', 214K extendingin opposite directions, as shown in Figs. 7 and 8, and fitting inbearings 215, Set screws 217, 218 and 217", may also be provided forholding thojaclis in laterally extending position or in. anyotherposition. By adjusting the lengths of the chute jacks so, asto besomewhat less than the 'idth of the mine chamher, the jacks will act asbuffers to minimize the blows of the same against the mine wall as theentire mining and loading machine is moved forward for continued miningoperations. The chief function. however, of

the chute jacks is to steady the rear chute section 195 by holding, itagainst lateral ibration during the loading operation.

In addition to the forward aclr 1Y3, ceiling jacks 219, 219 (Fig. 5)rmaybe pivotally mounted at 186, 186 in common with the walking beams 187and187, although having a pivotal movement independently thereof. It willthus be seen that by means of the ceiling jacks 173, 219v and 219, themain and supplemental frames may be securely held in position during themining and loading operations; and during the loadin operation the walljacks 208 and 203 may be relied upon to brace the rear chute 195 againstlateral vibration. When the ceiling acks are released and the rear chutejacks swung downwardly partially or entirely, the entire mining machinemay be pusned forwardly into position for making a new cut in the minewall. lVhen the macnine is to be moved baclr from the mine wallconnection for the pulling chain may be made at the handle or eye 220 atthe rear lower portion of the main frame, as shown in Figs. 1, 2 and 3.

After all the parts have been properly ad justed and the ceiling jacksoperated to secure the machine firmly in position, the con troller 99may be operated to secure rotation of the electric motor in the properdirection to rotate the sprocket wheel 1 19 in the direction to move thechain cutter in cutting direction. hen the electric motor is started,the chain cutter begins to operate immediately,but it will not be swungupwardly from the position shown in Fig. 1 until the clutch 101 (Fig.2') is thrown in. When this isdone, the winding drum (50 is slowlyrotated to gradually move the cutter chain forward and make a U-shapedlrerf in the mine wall in order to completely sever therefrom a crescentshaped or semicylindrical shaped piece f material. As the loop chaincutter is gradually moved forward, it pulls vith it the lower end oftheconveyor belt 110. As shown in Fi 11, there are pivotal connections at118 and 118 between the on ter frame 13 and the triangular plates 112and 113 (Fig. 3), and flexible connections by reason of the rope 56between the plates 112, 113'and the belt 1.10. The dimension of thetriangular-plates in alignment with the belt is such as to not interferewith the free movement thereof into the curved kerf 221 (Fig. producedin the mine wall. The belt 110 being flexible may also enter the lrerf221 freely. As hereinbefore explained, when the stop 111 fastened to therope engages the plates'112,

113, and the pull on the rope 56 is continued, the chain cutter and itsframe will be swung forwardly while being pivotally supported by itsshaft 4-0 in the bearings 38 and 39 at the forward ends of the arms 36and 37 respectively of the supplemental frame 35 (Fig. So far as thisoperation. is concerned, the swinging motion is the same as if the rope56 were fastened securely to the right hand end of the se mental plate16 (Fig. 1). I

At that end of the belt 110 adjacent the chain cutter frame/ 13, Iprefer to locate a plurality of pawls as shown in Figs. 2,

r 3, 4 and 11. The connection of each of these block 227 isfirmlysecured to the cross plate 228, which in turn is connected to therear end of the belt 110 by the clamping plate 229 which may be held inthe position shown in Fig. 12 by the screws 230. means of thisconstruction, the connections between the belt 110 and thechain cutterframe may be entirely of metal, including the rope 56, whereas the belt110- may be made of leather, rubber, or woven-fabric, where greaterflexibility is desired, although I prefer to use sheet metal for thebelt 110 on account'of its greater strength and durability. The upwardlyprojecting pawls 222 do not interfere with theentrance ofthe belt or theconnections between the same that as soon as themotionof-tlie chaincutter frame is reversed, the pawls will grip the material and carry thesame baclr with the belt. 'When the clutch- 101 is thrown into releasedposition by the action of the lever 102 2) the chain cutter frame .1-3,together with the piece of material severed I from the mine wall, isfree to descend.

In order to secure the return U'lOYGIIlGIllJ or the belt 110 togetherwith the material held on the same by the spring pressed )awls 222.newer is transmitted to the windl ing drum 231, which. is mountedloosely on the transverse shaft 76, as shown in Fig.

2. When the electric motor 84: is in operation, the shaft 76 is beingrotated through the sprocket 81 (Figs. 2 and 3). Pivoted at 232 on abracket 233 extending forwardly from the electric motor frame, is amanual, lever 234-. the short arm ofwhich is arranged to operate theclutch 235 into driving engagement with. the winding drum 231 so as totransmit. motion from the shaft "Z6 to said drum.

the rope 206 which extends around the drum 204: at the rear end of therearchute 195,to the connection 207. This connection may be similartotha-t of the forward end of the belt on which the pawls 222 aremounted, but having a transverse metallic is rotated in theproperdirection, the belt 110 will be pulled up the chute176 and l pawls 222.

hen the drum 2.31 is thus 1 ositively rotated, a pull'is exerted on hasbeenbrought to rest.

along-the rear chute 195 while the severed material is being held on thebelt by the At the same time, the chain cutter frame is being restoredto initial position. While the severed semi-cylindrical or crescentshaped block of material cut from the mine wall may be divided bybreaking into various pieces due to itsown "weight, I contemplateremoving the material by the loading apparatus in large blocks. It}should alsobe observed that although themachine is capable of severingthe material entirely from the mine wall before it is loaded, thecutting operation may be discontinued before the block of material iscompletely severedand the spring pressed pawls relied on to break thecut' material from the mine wall when the drum 231 is actuated to exertastrong pull on the rope 206 andthrough the belt and its connec--tioris, to thechain cutter frame, to move the same back toward initialposition. For instance, hali: of asemi-oyhndrical or crescent shapedblock of material may be out out and removed, first by making a cut sub-I stantially halfway toward the ceiling and and the chaincutter frame'The springs 2263 press the pawls constantly upward, so

breakin awai the cut out aortion and loading it, and then completingtheoperation by by the paw1s'222, the number of which may be increased asdesired.

VVhile' I prefer to use the'pawls 222, they may be omitted where theinclined chute 176 may be arranged so that the angle or repose willalways keep the, material on thebelt and not permit it to slide back.

The spring pressed pawls are also preferable to assure theripping of thematerial from the mine wall, or its complete severance therefrom, sothat when the belt is started baclgthe material will go with it.

It is evident that after the block of material has been severed from amine wall and the chain cutter brought back to the positionshown in Fig.3, the material in engagement with-the pawls has not as yet been moved asufficient distance back from themine wall. lt-herefore provide meansfor continuing the rearward motion of the belt 1.10 even after the chaincutter frame In order to limit the rearward motion ofthe chain cutterframe, the lower longitudinal. angle-beams 22 and 22 may. be extendedforward into such position as to. be engaged by the lower portionsoflthechain cutter frame 43. 'If desired, however, limit buffers may beextended forward from the uprights 27 and 27to engage the edges of theplates 171 and 171".

I When the chain cutter frame is held from further baclrwardg movementin the manner indicated, continued pull 0111-116" rope 206 and on thebelt will exert a pull on the rope 56 and cause it to slide around thecurved plate 108 and along the plate 1'71 (Fig. 1) around the pulleys 50and 53 and around the segmental place 46, assuming that the drum 60 isfree to rotate by the release of the clutch 101.

In order to assure that the the clutch 101 wi l be in released positionwhen the pull on the rope 56 from the belt 110 is exerted, I haveprovided a mechanical interlocking connection between the operatinglevers 102 and 23 1- of the clutches 101 and 235 respectively. Thisinterlocking connection, as shown in F 2, comprises an interconnectingrod pivoted at 240 to the short arm of the lever 234 for the clutch 235.The other end 241 of the rod 239 extends to a position where it slidesthrough a fixed braclzet 242 and is obstructed by the hub portion 103 ofthe operating lever 102 for the clutch 101, except when the clutch 101is in released position, when the hole 243 in the hub 103 registers withthe opening in the bracket 242. When this occurs, the rod 239 can bemoved into the opening 243. It will thus be seen that not until theclutch 101 is fully released can the lever 234 be operated to throw inthe clutch 235, and when the latter clutch is thrown in the clutch 101is locked against being thrown in. Therefore, before the belt can beoperated to restore the cutting mechanism to initial position, theclutch 101 must be fully released and after it is once released itcannot be again thrown in so long the drum 231 is operatin to exert apull on the rope 206, the belt 110 and the rope it is therefore evidentthat whenever pull is exert-ed on the rope 56 tonnwind the same from thedrum 60, the latter is always free, without any danger of having powertransmitted thereto from the shaft in the opposite direction. Thecontinued rearward motion of the belt 110 will take the material out ofthe inclined chute 17 6 onto the rear chute 195 and over the rear endthereof to dump the same into irine cars immediately below the rearchute. In this way the middle drum 204 will cooperate with the drums 203and 205 to maintain the belt 110 in properforin, even after the belt hasthe rope 206 with the drum 231 which is mounted directly on the shaft76, with no reduction gearing intervening.

After the operation of severing a block of material from the mine walland of loading the same into a mine car has been performed, it isnecessary to return the belt 110 to initialposition preparatory toproducing another cut in the mine wall. In order to restore the parts toinitial position rapidly, I provide a clutch 244 opposite thatdesignated 100 on the shaft 76, so that after the clutch 235 isreleased, the lever 102 may be operated to efiect transmission of powerfrom the shaft 76to' the sprocket 245, as shown in Figs. 1 and 5. Thissprocket- 245 is geared by a sprocket chain 246 directly to the drum 60without the intervention of the reduction gearing 63, 64, 66 and 67shown in Fig. 2. As soon as the belt approaches the chain cutter frame,the clutch 243 may be thrown to released position and then the clutch100 thrown in by proper movement of the manual lever 102 2), whereuponthe motion of the belt will be continued but at a much slower rate ofspeed, until the stop 111 strikes against the plates 112, 113, whereuponfurther motion of the rope 56 relatively to the pulleys 50, 53 andsegmental plate 46 will be dis continued, but further pull on the rope56 will start feeding the chain cutter forward again. At such time thechain cutter is always operating, because whenever the electric motoroperates the chain cutter is also operated through the sprocket 149.liurthormore, in order to assure that the chain cutter will always beoperated in the proper direction, I prefer to omit from the controllerbox 99 a reversing switch, although one may be provided for initialconnection of the motor to the supply means in the proper direction andthereafter a controller comprising the usual starting rheostat reliedupon to alwaysstart up the motor in the same direction.

lhoapparatus as shown in Figs. 2 and 5 also makes provision for movingthe mining machine laterally in either direction. For this purpose twowindlass drums 247 and 248 are keyed to the shaft 76 so as to rotatetherewith. Ropes indicated by the dotted lines 249 and 250 may be guidedaround the pulleys 251 and 252 respectively, which are mounted onbrackets 253 and 254 connected to the cross angle-beam 25. The rope 250may be extended to a suitable anchorage in the mine at one side of themlning machine and the rope 249 may be extended to a suitthe ropes 24:9and 250 one or more times about drums 24/7 and 248 respectively, eitherdrum may transmit power to the rope thereon whenever desired. Forinstance, if the rope 249 is anchored at a suitable dis tance from oneside of the mining machine, power may be transmitted to the rope 249 topull the mining machine laterally when the rear end of the rope 249 ispulled manually to tighten the loops on the drum 247. In a similarmanner by pulling back on the rope 250 its loops may be tightened on thedrum 248 so that the mining machine may be pulled in the oppositedirection. By anchoring the rear ends of either or both ropes 249 and250 and partly looping the ropes around the drums 2&7 and 2 18, andexerting suitable pulls on the lateral extensions of the ropes, themining machine may be shifted toward the rear by the elec'- tricallyoperated power mechanism. In or der to shift the mining machine forward,the lateral extensions of the rope may be guided around directionanchorages before being secured to lined anchorages, toward the front ofthe mining machine. In such case, by properly looping ropes 24:9 and 250around the drums 247 and 248 IGSPGCtlVGlY, and exerting suitable pullson the rear portions of the ropes, the entireinining machine may bemoved forwardly on the skids 17 5 and 175 by electric power mechanism.As shown in Fig. 1, pulleys 255 and 256 (Fig. 2) may be keyed to a.square ended shaft 257 so that a crank may be applied to turn thepulleys and 256 and thus exert a pull on either rope 249 or 250, asdesired, to secure the proper frictional connection between the same andthe Windlass drum 24:7 'or 248. Also indicated in Fig. 1, the pulleyblocks for the guide pulleys 251 and 252 may be pivoted and locatedopposite openings 258 in the lower longitudinal beams 22, 22' of themain frame of the mining machine. Individual operation of the drums 255and 256 may be secured by not perinanently connecting the ropes 24:9 and251) thereto but relying upon wrapping the ends of such rope around thedrum to secure operating connection in a well-known manner.

It should be observed that in some in stances the feeding operation ofthe loop chain cutting mechanism. may be continued beyond the pointwhere the block of material is entirely severed trom'the mine wall, '50that the pawls 122 may snap over and above the cut out section ofmaterial. This will effect the direct and positive engagement o'l thepawls with the material. so that when the belt 110, together with thecuttingmechanism, is retracted, the material will be drawnbaclc'in avery positivemanner. However, in most instances, it would be preferredto rely on the pawls 122 digging into the out material upon reversemovementthereof so as to oaiisebackward movement of the material fromthe mine wall.

Obviously,those skilled in the art may make variouschanges in thedetails and arrangement of parts without departingfrom the spirit andscope of my invention as deti nod hy'the claims hereto appended; 1 de'e, therefore, not to be restricted tothe f exact construiiitiondisclosed in the drawings and in the foregoing description.

lVhat I claim, and desire to hare protected. by Letters Patent of theUnited States:

1. The combination with a main frame, of a supplemental .tramepivotedthereto,

core cutting mechanism having an unob structed core, openingtherethrough carried by said supplemental frame, a bracing memberpivoted to said main frame, a screw-threaded rod pivoted to saidsupplemental fra'me,and two nuts on said screwthreaded rod cooperatingwith said bracing member to adjust the position of said Supplementalframe and hold the same in adjusted position. v

2. The combination with cutting mechanism, of means for operating thesame, a'

frame for said cutting mechanism, a rope frictionally connected to saidframe, winding apparatus connected to one end of said rope, a conveyorbelt connected .to the other end of said rope, and power mechanismconneoted to the other end or said belt.

3. The combination with cutting mocha} nism, of means for operating thesame, a frame for said cutting mechanism, a rope :frictionally connectedto said frame, means. tor exerting a pull on one end of said rope .rearafter said frame reaches its initialposition. t i

4:. T he combinatimi of cutting mechanism having an unobstructedcore-opening therethrough, means for operating the same to cut a core, aframe for said cutting mechanism, power mechanism for operating saidframe to feed said cutting mechanism, a clutch for effecting theoperation of said feeding mechanism, mechanism for restoring'saidcutting mechanism to initial position, a clutch for effecting theoperation of said restoring mechanism, and an interlock between saidclutches to prevent both from being thrown in simultaneously. 2

5. The combination with cutting mechanism having an unobstructedcore-opening theretlirough, of means for operating the Same t0 cut-acore, means for feeding said

